Abstract:
Provided are methods related to preventing hydrocarbon residue buildup in engine, exhaust-gas-system or powertiain components. Prevention is achieved by applying coating of a mixed metal oxide via a suspension plasma spray.
Abstract:
Provided are methods related to preventing hydrocarbon residue buildup in engine, exhaust-gas-system or powertiain components. Prevention is achieved by applying coating of a mixed metal oxide via a suspension plasma spray.
Abstract:
Exhaust treatment filters, systems, and methods are disclosed. According to one or more embodiments, a particulate filter is zone coated with an oxidation catalyst and is used in an emission treatment system or method including a NOx reducing catalyst and an optional NH3 destruction catalyst.
Abstract:
Provided are methods and components related to preventing hydrocarbon residue buildup in engine components. Prevention is achieved using a coating of a mixed metal oxide. The mixed metal oxide comprises a mixture of at least two of Gd, Al, Ti, Ce, Pr, La, Y, Nd, and Mn. The coating can also contain amounts of precious metals, eg. Pt, Pd, Rh and/or Au.
Abstract:
Catalysts and catalytic articles for treating exhaust gas streams are described. In one or more embodiments, a catalyst system includes a first zone to abate nitrogen oxides by selective catalytic reduction, a second zone to oxidize ammonia and a third zone to oxidize carbon monoxide and hydrocarbons. Methods and systems for treating the exhaust gas stream are also provided. Methods of making and using such catalysts and catalytic articles are also described,
Abstract:
Provided are methods and components related to preventing hydrocarbon residue buildup in engine components. Prevention is achieved using a coating of a mixed metal oxide. The mixed metal oxide comprises a mixture of at least two of Gd, Al, Ti, Ce, Pr, La, Y, Nd, and Mn. The coating can also contain amounts of precious metals, eg. Pt, Pd, Rh and/or Au.
Abstract:
Catalytic articles, methods and emissions treatment systems for treating an engine exhaust gas stream containing NO x and particulate matter are disclosed and include a particulate filter comprising a first SCR catalyst for NO x conversion disposed downstream of the injector. The particulate filter is a partial filter with a particle filtration efficiency between about 30% and 60% and an SCR catalyst loading in the range of 0.1 g/in 3 - 3.5 g/in 3 .
Abstract:
Catalysts and catalytic articles for treating exhaust gas streams are described. In one or more embodiments, a catalyst system includes a first zone to abate nitrogen oxides by selective catalytic reduction, a second zone to oxidize ammonia and a third zone to oxidize carbon monoxide and hydrocarbons. Methods and systems for treating the exhaust gas stream are also provided. Methods of making and using such catalysts and catalytic articles are also described,
Abstract:
Exhaust treatment filters, systems, and methods are disclosed. According to one or more embodiments, a particulate filter is zone coated with an oxidation catalyst and is used in an emission treatment system or method including a NOx reducing catalyst and an optional NH 3 destruction catalyst.
Abstract:
Exhaust treatment filters, systems, and methods are disclosed. According to one or more embodiments, a particulate filter is zone coated with an oxidation catalyst and is used in an emission treatment system or method including a NOx reducing catalyst and an optional NH 3 destruction catalyst.